Figure 7 | Scientific Reports

Figure 7

From: Experimental demonstration of broadband light trapping by exciting surface modes of an all-dielectric taper

Figure 7The alternative text for this image may have been generated using AI.

(a) Scheme of experimental measurement setup. The dielectric taper is sandwiched between WR-42 waveguides connected to vector network analyzer through cable lines. (b) Simulated transmittance (blue) and measured transmittance (red) curves in dB scale at a frequency range spanning from 18.0 to 26.5 GHz. Multi transmittance dips are observed in the spectra which suggest the potential frequencies where the negative Goos-Hänchen effect occurs. (c) Transmittance phase change in simulation (blue) and measurement (red). Both measured magnitude and phase are similar to the simulated results with a frequency offset of less than 1.5%.

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